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dc.contributor.author
Sigrist, Mirna Edit
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dc.contributor.author
Beldomenico, Horacio Ramon
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dc.contributor.author
Tudino, Mabel Beatriz
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dc.date.available
2019-03-13T20:16:35Z
dc.date.issued
2010-08
dc.identifier.citation
Sigrist, Mirna Edit; Beldomenico, Horacio Ramon; Tudino, Mabel Beatriz; Determination of As(III) in nonacidified groundwater samples for inorganic speciation analysis using flow injection hydride generation atomic absorption spectrometry; Taylor ; Spectroscopy Letters; 43; 6; 8-2010; 458-464
dc.identifier.issn
0038-7010
dc.identifier.uri
http://hdl.handle.net/11336/71536
dc.description.abstract
A flow injection system coupled to hydride generation atomic absorption spectrometry with heated quartz tube atomizer was employed for the selective determination of As(III) in real groundwater samples under nonacidic conditions. The use of low-acidity conditions was carefully evaluated in order to minimize the interconversion of redox arsenic species. The As(III) hydride was generated using 0.1 mol L-1 HCl as carrier solution and 0.2% (m/v) NaBH4 in 0.025% NaOH as the reductant. A coil reaction larger than the used one for higher acidity conditions (480 mm instead of 115 mm) was selected. The generated hydride was transported to the atomizer by a nitrogen flow of 75 ml min-1. The main parameters that influenced the signal intensity and shape were studied. Under the best found experimental conditions, a detection limit (3σ) of 1.0 μgL-1 As(III) was obtained for a 500 μl sample volume. The analytical recovery ranged between 90% and 98%. In addition, the total inorganic arsenic concentration in the samples was determined on sample aliquots acidified with concentrated HCl and prereduced with 5% (m/v) KI-5% (m/v) C6H8O6 solution. HCl 1.2 mol L-1 as carrier solution, NaBH4 0.2% (m/v) as reductant, and a nitrogen flow rate of 75 ml min-1 were used in this case. The concentration of As(V) was calculated by difference between the total inorganic arsenic and As(III) concentrations. © Taylor & Francis Group, LLC.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Arsenic Speciation
dc.subject
Atomic Absorption Spectrometry
dc.subject
Flow Injection
dc.subject
Hydride Generation
dc.subject
Nonacidified Water Samples
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Determination of As(III) in nonacidified groundwater samples for inorganic speciation analysis using flow injection hydride generation atomic absorption spectrometry
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-08T20:28:37Z
dc.journal.volume
43
dc.journal.number
6
dc.journal.pagination
458-464
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Sigrist, Mirna Edit. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
dc.description.fil
Fil: Beldomenico, Horacio Ramon. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
dc.description.fil
Fil: Tudino, Mabel Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.journal.title
Spectroscopy Letters
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1080/00387010903261214
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/00387010903261214
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